From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 444B2280CC1 for ; Fri, 17 Jul 2026 06:20:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784269234; cv=none; b=K1fRFAk7gVTJzUqHRCcY/nHHQo+sXcZm5WoLrOTu8fYuHvhsivW5xFielKs1yiHAP1Gb0OnpW94uO0Ah55krcu2KeybIzkukzMxiFqOkqFxOUM3cO3+v8wGNexpgwDm3DcOHSuAybvuyk1UNLfiGBA+cAGhgh4xs+uXoRfMOVCs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784269234; c=relaxed/simple; bh=qLu0Fi0noGbsqUNSV1RMRI9mTV0TXGWHeEQoP2i3IaQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=MR28XFOCdz5SQtvXLRD98q2S3sY1Zd5MkEajqZb3eh0m/LfoAYb/d0auOpyBElL4Wu1ojk6xIo+nlv/8bdZX0IMGXtmCTZOaUSpBWh6j5WoO3tQpzt47hPEVJjiiSrK7VAzmwBWCS6ifTvUNlOuAxyOE7duJ3szcY01kWmIpWWw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; dkim=pass (2048-bit key) header.d=realtek.com header.i=@realtek.com header.b=sqhFcwkE; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=realtek.com header.i=@realtek.com header.b="sqhFcwkE" X-SpamFilter-By: ArmorX SpamTrap 5.80 with qID 66H6KTr444163411, This message is accepted by code: ctloc85258 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=realtek.com; s=dkim; t=1784269229; bh=rPreDSqnlFDnypKP/pkhal7/fI/q3wCz7Q/sI413onk=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding:Content-Type; b=sqhFcwkEXy/Yef+z7ExvjJsWK16Y/nLGPc/1ArVFZCRvWCw87/w0o5aO3+PCcERkF ErgzoNZ1vhHpd5IIkr8Xdkdofl7ZNJLIsCuubz/iypbhBPW2sZHV92nogKxIcqCc6T eJxefY7Zozlcv1lZt5vV5Fu0aBVMKVXwaRYT/kCeEDFc9/NpzxKIttnGXuTY3QcA5X F5Yfqa3VwDEUyt8z8Uvl0tx5oe8pGr4GwYsKj136jyDwaAO3wShMWJME17wS3n5N6U vaiwOIpnrfMRUsRXQmO5v/SXK4mCerye88zCCVgM+m7Fk0PD3pd00kZdH0EdEIYjcE Ss7kbqc+VTaIg== Received: from mail.realtek.com (rtkexhmbs04.realtek.com.tw[10.21.1.54]) by rtits2.realtek.com.tw (8.15.2/3.29/5.94) with ESMTPS id 66H6KTr444163411 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Fri, 17 Jul 2026 14:20:29 +0800 Received: from RTKEXHMBS01.realtek.com.tw (172.21.6.40) by RTKEXHMBS04.realtek.com.tw (10.21.1.54) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.17; Fri, 17 Jul 2026 14:20:30 +0800 Received: from RTKEXHMBS03.realtek.com.tw (10.21.1.53) by RTKEXHMBS01.realtek.com.tw (172.21.6.40) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.17; Fri, 17 Jul 2026 14:20:29 +0800 Received: from [127.0.1.1] (172.21.40.75) by RTKEXHMBS03.realtek.com.tw (10.21.1.53) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.17 via Frontend Transport; Fri, 17 Jul 2026 14:20:29 +0800 From: Ping-Ke Shih To: CC: , , Subject: [PATCH rtw-next 3/9] wifi: rtw89: 8852cu: add quirk to disable 2.4 GHz band Date: Fri, 17 Jul 2026 14:19:04 +0800 Message-ID: <20260717061910.54466-4-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260717061910.54466-1-pkshih@realtek.com> References: <20260717061910.54466-1-pkshih@realtek.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain From: David Lee Add RTW89_QUIRK_DISABLE_2GHZ to the rtw89_quirks enum to allow per-device suppression of the 2.4 GHz band. Apply the quirk only for the 0x28de:0x2432 (VID:PID) USB device, which operates only in 5/6 GHz bands. Signed-off-by: David Lee Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/core.c | 3 +++ drivers/net/wireless/realtek/rtw89/core.h | 1 + drivers/net/wireless/realtek/rtw89/rtw8852cu.c | 3 ++- 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index b87a72700b99..77a0e2582dbe 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -6418,6 +6418,9 @@ static int rtw89_core_set_supported_band(struct rtw89_dev *rtwdev) u8 support_bands = rtwdev->chip->support_bands; int ret; + if (test_bit(RTW89_QUIRK_DISABLE_2GHZ, rtwdev->quirks)) + support_bands &= ~BIT(NL80211_BAND_2GHZ); + if (support_bands & BIT(NL80211_BAND_2GHZ)) { sband = rtw89_core_sband_dup(rtwdev, &rtw89_sband_2ghz); if (!sband) diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h index 70cf6cbf4e8a..9d782cbfee70 100644 --- a/drivers/net/wireless/realtek/rtw89/core.h +++ b/drivers/net/wireless/realtek/rtw89/core.h @@ -6057,6 +6057,7 @@ enum rtw89_quirks { RTW89_QUIRK_THERMAL_PROT_120C, RTW89_QUIRK_THERMAL_PROT_110C, RTW89_QUIRK_HW_INFO_SYSFS, + RTW89_QUIRK_DISABLE_2GHZ, NUM_OF_RTW89_QUIRKS, }; diff --git a/drivers/net/wireless/realtek/rtw89/rtw8852cu.c b/drivers/net/wireless/realtek/rtw89/rtw8852cu.c index 51dd8fb05366..2dec9b845481 100644 --- a/drivers/net/wireless/realtek/rtw89/rtw8852cu.c +++ b/drivers/net/wireless/realtek/rtw89/rtw8852cu.c @@ -97,7 +97,8 @@ static const struct rtw89_driver_info rtw89_8852cu_valve_info = { .variant = NULL, .board = &rtw89_8852cu_valve_board, .quirks = NULL, - .dev_id_quirks = BIT(RTW89_QUIRK_HW_INFO_SYSFS), + .dev_id_quirks = BIT(RTW89_QUIRK_HW_INFO_SYSFS) | + BIT(RTW89_QUIRK_DISABLE_2GHZ), .bus = { .usb = &rtw8852c_usb_info, }, -- 2.25.1